FZUS53 KLOT 251411

NSHLOT



Nearshore Marine Forecast

National Weather Service Chicago/Romeoville IL

911 AM CDT Sat Oct 25 2025



For waters within five nautical miles of shore on Lake Michigan



Waves are provided as a range of significant wave heights, which

is the average of the highest 1/3 of the waves, along with the

average height of the highest 10 percent of the waves which will

occasionally be encountered.



LMZ740-260000-

Winthrop Harbor to Wilmette Harbor IL-

911 AM CDT Sat Oct 25 2025



.REST OF TODAY...Southeast winds around 10 kt becoming east in the

afternoon. Slight chance of showers. Waves 1 to 3 ft. 

.TONIGHT...East winds 10 to 15 kt becoming southeast. A chance of

sprinkles in the evening. Waves 1 to 3 ft. 

.SUNDAY...Southeast winds 10 to 15 kt becoming east 15 to 20 kt.

Mostly sunny. Waves 2 to 4 ft building to 3 to 5 ft.

.SUNDAY NIGHT...East winds 15 to 25 kt becoming southeast. Mostly

clear. Waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 

ft. A small craft advisory will likely be needed. 



$$



LMZ741-742-260000-

Wilmette Harbor to Northerly Island IL-

Northerly Island to Calumet Harbor IL-

911 AM CDT Sat Oct 25 2025



.REST OF TODAY...Southeast winds around 10 kt becoming east in the

afternoon. A chance of sprinkles. Waves 1 to 3 ft. 

.TONIGHT...East winds 10 to 15 kt becoming southeast. Partly

cloudy. Waves 1 to 3 ft. 

.SUNDAY...Southeast winds around 15 kt becoming east. Mostly

sunny. Waves 2 to 4 ft. 

.SUNDAY NIGHT...East winds 15 to 25 kt becoming southeast. Mostly

clear. Waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 

ft. A small craft advisory will likely be needed. 



$$



LMZ743>745-260000-

Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-

Burns Harbor to Michigan City IN-

911 AM CDT Sat Oct 25 2025



.REST OF TODAY...Southeast winds around 10 kt becoming east in the

afternoon. A chance of sprinkles in the afternoon. Waves 1 to 2 

ft.

.TONIGHT...East winds 10 to 15 kt becoming southeast. Partly

cloudy. Waves 1 to 2 ft. 

.SUNDAY...Southeast winds 10 to 15 kt becoming east. Mostly

sunny. Waves 1 to 3 ft. 

.SUNDAY NIGHT...East winds 15 to 20 kt. Mostly clear. Waves 2 to

4 ft.  



$$

DK